Oil burning system



Feb. 2, m2.- 4, R, BREN 1,843,757

OIL BURNING SYSTEM Filed April 8, 1929 7 V II I //I :VIIIIIIIIIIIIIIII/IIIII IIIA W V Inventor 1Q JI1%/ (fay k200i flak/ y )JM Attorney Patented reu'z, 1932 a stars eater JOSEPH ROGH BRIEN; OF MONTREAL, QUEBEC, CANADA, ASSIGNOR OF ONE-FOUBTH TO K HENRI STE MARIE AND EMERY STE MARIE, BOTH MONTREAL, CANADA OIL BURNING SYSTEM Application filed April 8, 1929. Serial No. 353,469;

The present invention pertains to a novel oil burning system designed particularly for the combustion of oil as afuel in domestic and industrial installations.

The invention lends itself particularly to use in conjunction with a boiler heated by means of an oil burner, and in such an arrangement the steam generated by the boiler, as well as the hot water produced therein, are utilized in the operation of the device. More specifically, the steam is conducted from the boiler to the mixing chamber of the burner in order to atomize the oil, and the hot water is used for warming the oil and maintaining it in a heated condition while flowing from the tank to the burner.

The invention is fully disclosed by way of example in the following description and in the accompanying drawings in which Figure 1 is an elevation of the system,

showing the boiler in longitudinal section; V

Figure 2 1s a longitudinal sectional view of the burner, and

Figure 3 is a detalled section on the line- 3-3 of Figure 1.

Reference to these views will now be made by use of like characters which are employed to designate corresponding parts throughout.

In Figure 1 is shown a boiler 1 which, for the purpose of the present invention, is preferably equipped with a steam dome 2. The boiler is encased 'in a furnace 3 having a grate 4 disposed beneath the boiler. On the grate is supported a sloping bed l of ashes or the like for spreading the flame from the burner which will be presently described.

Into the forward end of the furnace, slightly above the grate, is inserted an oil burner casing including a mixing chamber 5 and from WlllCll depends an integral air inlet 6 open to the atmosphere exteriorly of the furnace. v

The outer end of'the member 5, 6 is open at 7 for admission of air; A nozzle 8 is passed through the upper partof the burner and is directed towards the mixing chamher, while intovthe outer end 7 is passed a nozzle 9 connected by a pipe 10 to the steam dome 2 and having a valve 11 for control purposes. A by-pass 8 connects the nozzle 8 to the pipe 10 at a-pointb elow thefvalve Q At a convenient position removed from the boiler is. dv Sp sed an oil supplyjtank '12 for containing the oil to be delivered to the mixing chamber 5. Any oil pipe13extends from the top ofithe tankiand enters the-bypass 8'-. This pipe has a check valve 14:.TO1' preventing back'flow to the tank. V I

V A hot water pipe15 extends from the water space of the water pipe passes through the oil pipe 13 as clearly shown in Figures 2 and 3. The hot water pipe is equipped with a reducing described, hot water under pressure passes from the boiler through the pipe 15 to the top of the oil tank 12 and exerts a pressure on p the oil therein. Under this pressure the oil is forced through the oil pipe 13, into the by- 7 pass 8 and through the nozzle 8 into the mixing chamber5. It will be'seen that the by-pass 8 has valves 19 and 20 at opposite sides of the oil pipe 13. In normal operation the valve 19 is closed andthe valve 20 open. im

At the same time steam under pressure passes from the dome 2 through the pipe 10, the valve 11 being open, and to the nozzle 9 and mixing chamber 5.

The injection of steam into thechamber iia 5 causes a draft of air through the inlets 6 and 7 to the mixing chamber 5 as indicated by the arrows in Figure 2. The steam mixes with this air and humidifies it, and finally an intimate mixture of oil, steam and air of the '90 proper proportions for combustion is formed in the mixing chamber and delivered in ig. nited condition to the bed 4. The oil, more over, prior to reaching the nozzle 8, is heated by contactwith hot water in the tank 12 and 795 furtherby flowing around a portion of the pipe 15. i This arrangement makes it possible to position the oil tank at any desired or convenient distance from the burner and yet maintain the heated condition of the oil'by' p of the boiler 1 into the oiltank 12 and to a considerabledepth therein. A portion its passage around the enclosed portion of the pipe 15.

The system is controllable in all respects by the valves 11, 18, 18, 19 and 20 and is completely shut down by closing all of these valves. It will be apparent that the flow of steam, hot Water and oil is regulated by the valves 11, 18 and 20 respectively. The bypass 8 may be cleaned at Will by opening both valves 19 and 20, thus allowinga' charge of steam to How through the by-pa'ss and the nozzle 8.

Although a specific embodiment of the invention has been illustrated and described, it

will be understood that various alterations in the details of construction may be made Without departing from the-scope of the invention as indicated by the appended claim.

What I claim is In an oil burning system, a boiler, a burner beneath said boiler and including a chamber and an air inlet, an oil supply tank, an oil nozzle in said burner, an oil line connecting said nozzle to the upper part of said tank, a hot Water pipe connecting said boiler to a lower level in said tank and having a portion passing through said oil line, a steam dome onsaid boiler, a steam nozzle in said burner, a steam line connecting said steam nozzle to said dome, a by-pass from said steam line to said oil nozzle, and a valve in said by-pass:

In Witness whereof I have hereunto set my hand.

JOSEPH ROCH BRIEN. 

